首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
At the age of twelve years, the human body is at its most vigorous. It has yet to reach its full size and strength, and its owne
At the age of twelve years, the human body is at its most vigorous. It has yet to reach its full size and strength, and its owne
admin
2011-04-26
109
问题
At the age of twelve years, the human body is at its most vigorous. It has yet to reach its full size and strength, and its owner his or her full intelligence; but at this age the likelihood of death is least. 71.
Earlier, we were infants and young children, and consequently more vulnerable; later, we shall undergo a progressive loss of our vigor and resistance which, though imperceptible at first, will finally become so steep that we can live no longer, however well we look after ourselves, and however well society, and our doctors, look after us.
This decline in vigor with the passing of time is called aging. It is one the most unpleasant discoveries which we make that we must decline in this way, that if we escape wars, accidents and diseases we shall eventually "die of old age", and that this happens at a rate which differs little from person to person, so that there are heavy odds in favor of our dying between the ages of sixty-five and eighty. Some of us will die sooner, a few will live longer on into a ninth or tenth decade. But the chances are against it, and there is a virtual limit on how long we can hope to remain alive, however lucky and robust we are.
Normal people tend to forget this process unless and until they are reminded of it. 72.
We are so familiar with the fact that man ages, that people have for years assumed that the process of losing vigor with time, of becoming more likely to die the older we get was something self-evident, like the cooling of a kettle of hot water or the wearing-out of a pair of shoes.
They are also assumed that all animals, and probably other organisms such as trees, or even the universe itself, must in the nature of things "wear out". Most animals we commonly observe do in fact age as we do if given the chances to live long enough; and mechanical systems like a wound watch, or the sun, do in fact run out of energy in accordance with the second law of thermodynamics. But these are not analogous to what happens when man ages. A run-down watch is still a watch and can be rewound. An old watch, by contrast, becomes so worn and unreliable that it eventually is not worth mending. But a watch could never repair itself—it does not consist of living parts, only of metal, which wears away by friction. 73.
We could, at one time, repair ourselves—well enough, at least, to overcome all but the most instantly fatal illnesses and accidents. Between twelve and eighty years we gradually lose the power; an illness which at twelve would knock us over, at eighty years can knock us out, and into our grave. If we could stay as vigorous as we are at twelve, it would take about 700 years for half of us to die, and another 700 for the survivors to be reduced by half again.
选项
答案
在一段时间内,我们可以自我修复,至少可以战胜除了致命的疾病和事故以外的其他所有事故和疾病。从12岁到80岁,我们逐渐丧失这种能力。12岁时的一场疾病也许可以让我们卧床,80岁时同样的疾病却可以使我们毙命。如果我们能够保持12岁时旺盛的生命力,那得过700年我们中的一半人才会死去,再过700年,幸存者才会又减少一半。
解析
转载请注明原文地址:https://kaotiyun.com/show/rB6O777K
0
考博英语
相关试题推荐
Lookatthelistbelow.Itshowssomeofnon-fictioncategories.Forquestions6-10,decidewhichsection(A-H)ofthecategori
Readtheintroductionbelowaboutacompanytrainingprogramme.Choosethecorrectwordtofilleachgap,fromA,BorContheo
Readthereportbelowaboutthegrowthoflow-costairlines.ChoosethecorrectwordtofilleachgapfromA,BorContheoppo
ReadtheChairman’sStatementbelowandanswerquestions23-28.Forquestions23—28,choosethecorrectanswer.Forea
Lookatthechartbelow.Itshowsthedomesticsales,foreignsalesandprofitlevelsofanelectronicsmanufacturingcompanyov
AimsofAssetManagementAimofassetmanagementistoachievegreatesteffectivenessandprofitabilityfromproductionand
FiveInterviewingFundamentalsThemostimportantthingtofindoutwhenyouinterviewsomeoneisifyouliketheperson.Yo
Hedisplayedacompletelackofcourtesyandtactindealingwithhisemployer.
Sheactuallypreferredamoregregariousurbanlifestyleandtheculturalattractionsinawarmerclime.
Ifhisfathercouldnotkeepupthepaymentsonthemortgage,hisunclemight______itforhim.
随机试题
人工喂养:
不属于我国计划免疫范畴的传染病是()
药学职业道德准则的重要内容之一是药学人员与病人之间最基本的道德要求是
甲公司与乙公司签订了设备买卖合同,合同约定乙公司先向甲公司交付设备,丙公司作为甲公司的保证人担保甲公司按照合同约定的期限向乙公司支付100万元设备价款,合同签订后,甲公司与乙公司自行变更了买卖合同中的价款条款,将设备价款减至95万元,并将甲公司支付价款的履
某建筑松散砂土地基,处理前现场测得砂土孔隙比e=0.78,砂土最大、最小孔隙比分别为0.91和0.58,采用砂石桩法处理地基,要求挤密后砂土地基相对密实度达到0.85,若桩径0.8m,等边三角形布置,试问砂石桩的间距为下列何项数值?(取修正系数ξ=1.2)
某堤防加固工程,建设单位与施工单位签订了施工承包合同,合同约定:(1)工程9月1日开工,工期4个月;(2)开工前,建设单位向施工单位支付的工程预付款按合同价的10%计,并按月在工程进度款中平均扣回;(3)保留金按5%的比例在月工程进度款中预留;(4
国际工程投标报价时,对于预计施工现场发生的办公费,正确的做法是()。
下列关于商业银行为降低个人信贷业务的操作风险的说法,正确的有()。
住宅物业管理在()情况下,建设单位可以采用协议方式选聘具有相应资质的物业服务企业。
下列关于公文分类的说法正确的是()。
最新回复
(
0
)